Beam control for optical beams

1 . An optical device, comprising:

a first optical element,

wherein the first optical element is a first pyramidal prism having three facets and a base; and

a second optical element,

wherein the second optical element is a second pyramidal prism having three facets and a base,

wherein the optical device is configured to receive a beam and output the beam, the first optical element and the second optical element being configured to alter a beam shape of the beam, such that the beam has a first shape at a first location and a second shape at a second location,

wherein the optical device is configured to split the beam into a plurality of components at the first location, and

wherein at least one of the first optical element or the second optical element is movable to adjust the second shape.

2 . The optical device of claim 1 , wherein the second shape is an annulus beam shape with a threshold level of edge sharpness.

3 . The optical device of claim 1 , wherein the at least one of the first optical element or the second optical element is rotatable around an axis of a beam path formed by the beam between the first optical element and the second optical element.

4 . The optical device of claim 1 , wherein the first optical element is configured to split the beam into the plurality of components at the first location.

5 . The optical device of claim 1 , wherein the first shape is a hexagonal close-pack field shape.

6 . The optical device of claim 1 , wherein the second shape is a vortex mode beam shape.

7 . An optical system, comprising:

a collimating lens to collimate a beam;

a focusing lens to focus the beam; and

an optical device to shape the beam, the optical device being disposed between the collimating lens and the focusing lens, the optical device comprising:

a first pyramidal prism having three facets and a base, and

a second pyramidal prism having three facets and a base,

the first pyramidal prism and the second pyramidal prism being positioned to cause the beam to have a first beam shape in a near-field and a second beam shape in a far-field,

the first pyramidal prism is configured to split the beam into a plurality of components, and

at least one of the first pyramidal prism or the second pyramidal prism is movable to cause the second beam shape in the far-field.

8 . The optical system of claim 7 , further comprising: an optical emitter to emit the beam toward the collimating lens.

9 . The optical system of claim 7 , further comprising: a process cable to receive the beam from the focusing lens and direct the beam toward a target.

10 . The optical system of claim 9 , wherein the near-field is at an input of the process cable, and

wherein the far-field is at an output of the process cable.

11 . The optical system of claim 9 , wherein the near-field is at an input of the process cable, and

wherein the far-field is at the target external to the process cable and aligned to an output of the process cable.

12 . The optical system of claim 9 , wherein, at a first relative position of the first pyramidal prism and the second pyramidal prism, the first beam shape is a point beam shape and the second beam shape is an annulus beam shape, and wherein, at a second relative position of the first pyramidal prism and the second pyramidal prism, the first beam shape is a split beam shape and the second beam shape is a vortex mode beam shape.

13 . The optical system of claim 9 , wherein the optical system is configured to output an annulus beam shape extending along an entire output beam profile.

14 . The optical system of claim 9 , wherein the optical system is configured to output the beam with an annulus beam shape and an edge steepness of the annulus beam shape that exceeds a threshold edge steepness value.

15 . The optical system of claim 9 , further comprising: an actuation component configured to move at least one of the first pyramidal prism or the second pyramidal prism linearly with respect to a beam path formed by the beam.

16 . The optical system of claim 9 , further comprising: an actuation component configured to move at least one of the first pyramidal prism or the second pyramidal prism rotationally around an axis of a beam path formed by the beam.

17 . A method, comprising:

setting, by a controller, a relative position of a first optical element and a second optical element within an optical device within an optical system to a first relative position,

wherein the first optical element and the second optical element are a pair of pyramidal prisms each having three facets and a base,

wherein the optical system outputs a beam with a first beam shape with the relative position set to the first relative position,

wherein the optical device is configured to receive the beam and output the beam, the first optical element and the second optical element being configured to alter a beam shape of the beam, such that the beam has the first beam shape at a first location and a second beam shape at a second location,

wherein the first optical element is configured to split the beam into a plurality of components at the first location, and

wherein at least one of the first optical element or the second optical element is movable to adjust the second beam shape; and

adjusting, by the controller, the relative position of the first optical element and the second optical element within the optical device within the optical system to a second relative position,

wherein the optical system outputs the beam with the second beam shape with the relative position set to the second relative position.

18 . The method of claim 17 , further comprising: receiving feedback identifying the first beam shape; and

wherein adjusting the relative position to the second relative position comprises:

adjusting the relative position to the second relative position in connection with a control signal associated with the feedback.

19 . The method of claim 17 , wherein adjusting the relative position to the second relative position comprises:

translating or rotating at least one of the first optical element or the second optical element.

20 . The method of claim 17 , further comprising: coupling the optical device to an optical fiber within the optical system.